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Commit Graph

38913 Commits

Author SHA1 Message Date
Andrew Bartlett
37321e6f76 s4-kdc: Do not modify the returned user_info_dc from samba_kdc_get_user_info_dc()
We have the duplicated shallow copy in each caller so that the caller is
clear on what memory can be changed.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
2023-10-12 23:13:32 +00:00
Joseph Sutton
19b1e31e23 s4:kdc: Always fetch resource groups
No behaviour change, and if the caller doesn’t need the resource groups
after all, the cost incurred is little more than the allocation of a
couple of dozen bytes of memory.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
a7765d1381 s4:kdc: Label ‘resource_groups_out’ parameter
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
2f3a8ae8d5 s4:kdc: Remove ‘group_inclusion’ parameter from samba_kdc_obtain_user_info_dc()
It could be equal only to AUTH_EXCLUDE_RESOURCE_GROUPS.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
300459e86a s4:kdc: Pass AUTH_EXCLUDE_RESOURCE_GROUPS into samba_kdc_obtain_user_info_dc()
As the ‘group_inclusion’ parameter has an effect only if the
‘resource_groups_out’ parameter is non‐NULL, this does not result in a
change in behaviour.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
30cfa9b79a s4:kdc: Pass resource groups parameter only if we are creating a TGT
No change in behaviour.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
3f6e6a3c23 s4:kdc: Make ‘resource_groups_out’ parameter const
The caller shouldn’t need to modify this.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
d7ed1b5302 s4:kdc: Check parameters of samba_kdc_get_user_info_from_pac()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
b2bb86bc54 s4:kdc: Simplify memory management with talloc stackframe
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
886bbcdc1c s4:kdc: Remove common out path from samba_kdc_obtain_user_info_dc()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
02daf011f7 s4:kdc: Split samba_kdc_get_user_info_from_pac() out of samba_kdc_obtain_user_info_dc()
View with ‘git show -b’.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
453bb84e64 s4:kdc: Rename variable ‘user_info_dc’ to ‘info’
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
7ee08114d4 s4:kdc: Rename parameter ‘user_info_dc_out’ to ‘info_out’
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
3045908557 s4:kdc: Fix leak
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
c559e9922e s4:kdc: Introduce intermediate variable ‘resource_groups’
No change in behaviour.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
d57062300f s4:kdc: Initialize out parameter of samba_kdc_get_user_info_from_db()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
0ed6d11e58 s4:kdc: Check parameters of samba_kdc_get_user_info_from_db()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
d02f37b489 s4:kdc: Rename local variable ‘user_info_dc’ to ‘info’
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
024d8cf500 s4:kdc: Pass ‘samdb’ into samba_kdc_get_user_info_from_db()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
8b518817e3 s4:kdc: Add ‘samdb’ parameter to samba_kdc_get_device_info_blob()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
29c230531c s4:kdc: Add ‘samdb’ parameter to samba_kdc_verify_pac()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
16cb8c4787 s4:kdc: Make boolean members into bit‐fields
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
a57d973d80 s4:kdc: Modify samba_kdc_get_user_info_from_db() to return a Kerberos error code
instead of an NT status code.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
54cd2af2de s4:kdc: Pass Kerberos context into samba_kdc_get_device_info_blob()
We shall need it in order to produce an error string.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
d51c505d35 s4:kdc: Rename samba_kdc_entry::user_info_dc to samba_kdc_entry::info_from_db
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
64326818eb s4:kdc: Rename samba_kdc_get_user_info_dc() to samba_kdc_get_user_info_from_db()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
c35d1fe593 s4:kdc: Inline samba_kdc_get_user_info_from_db() into its only caller
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
0a61dc6ce9 s4:kdc: Replace calls to samba_kdc_get_user_info_from_db() with calls to samba_kdc_get_user_info_dc()
The latter function behaves identically, except that it makes a shallow
copy of the returned structure, thus avoiding lifetime issues.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
96ab35bb91 s4:kdc: Add ‘msg’ parameter to samba_kdc_get_user_info_dc()
We want to call this function from more places. But some potential
callers, found in db-glue.c, have only a partially‐initialized
‘samba_kdc_entry’ structure, without the crucial ‘msg’ member. These
callers need to be able to pass in the ldb message as a separate
parameter.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
ce7c543ffc s4:kdc: Rename ‘user_info_dc_out’ parameter of samba_kdc_get_user_info_dc() to ‘info_out’
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
9c4647436c s4:kdc: Rename ‘skdc_entry’ parameter of samba_kdc_get_user_info_dc() to ‘entry’
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
f03b14f8b8 s4:kdc: Rename ‘user_info_dc’ parameter of samba_kdc_get_user_info_from_db() to ‘info_out’
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Joseph Sutton
a7323d704e s4:kdc: Rename ‘skdc_entry’ parameter of samba_kdc_get_user_info_from_db() to ‘entry’
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-12 23:13:32 +00:00
Ralph Boehme
94462dfabf s4:torture/smb2: fix typo in acls.c
This fixes the failing samba-codecheck CI job and is not part of the functional
security fix.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15439

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2023-10-11 11:47:44 +00:00
Volker Lendecke
768990ec4d rpc_netlogon4: Simplify dcesrv_netr_ServerAuthenticate3_helper()
Use a switch/case statement instead of a if/else chain. Easier to read
to me.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-10-10 23:23:40 +00:00
Volker Lendecke
e2e5ae1eb2 dsdb: Slightly simplify dsdb_trust_get_incoming_passwords()
Use talloc_memdup() instead of a manual copy.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-10-10 23:23:40 +00:00
Volker Lendecke
7bc1fa707d lsa_srv4: Fix a typo
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-10-10 23:23:40 +00:00
Andrew Bartlett
2e87c9d865 s4-echo: Remove the "echo" server (port 7, RFC 862) in production builds
This demonstration should never be enabled in production, if
echo service is required other software is far better positioned
to provide it.  Reflection attacks on echo are a known issue.

This is removed for consistency with the removal of rpcecho, but was
never enabled in the default smb.conf so is mostly harmless.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2023-10-10 14:49:40 +00:00
Andrew Bartlett
3cf1beed5d CVE-2023-42669 s4-rpc_server: Disable rpcecho server by default
The rpcecho server is useful in development and testing, but should never
have been allowed into production, as it includes the facility to
do a blocking sleep() in the single-threaded rpc worker.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15474

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2023-10-10 14:49:39 +00:00
Andrew Bartlett
cfeb9fe50e CVE-2023-4154: Unimplement the original DirSync behaviour without LDAP_DIRSYNC_OBJECT_SECURITY
This makes LDAP_DIRSYNC_OBJECT_SECURITY the only behaviour provided by
Samba.

Having a second access control system withing the LDAP stack is unsafe
and this layer is incomplete.

The current system gives all accounts that have been given the
GUID_DRS_GET_CHANGES extended right SYSTEM access.  Currently in Samba
this equates to full access to passwords as well as "RODC Filtered
attributes" (often used with confidential attributes).

Rather than attempting to correctly filter for secrets (passwords) and
these filtered attributes, as well as preventing search expressions for
both, we leave this complexity to the acl_read module which has this
facility already well tested.

The implication is that callers will only see and filter by attribute
in DirSync that they could without DirSync.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15424

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2023-10-10 14:49:39 +00:00
Andrew Bartlett
d3d83a8f2e CVE-2023-4154 dsdb/tests: Extend attribute read DirSync tests
The aim here is to document the expected (even if not implemented)
SEARCH_FLAG_RODC_ATTRIBUTE vs SEARCH_FLAG_CONFIDENTIAL, behaviour, so
that any change once CVE-2023-4154 is fixed can be noted.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15424

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2023-10-10 14:49:39 +00:00
Andrew Bartlett
0a79ed2c0b CVE-2023-4154 dsdb/tests: Add test for SEARCH_FLAG_RODC_ATTRIBUTE behaviour
SEARCH_FLAG_RODC_ATTRIBUTE should be like SEARCH_FLAG_CONFIDENTIAL,
but for DirSync and DRS replication.  Accounts with
GUID_DRS_GET_CHANGES rights should not be able to read this
attribute.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15424

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2023-10-10 14:49:39 +00:00
Andrew Bartlett
d4a71fbece CVE-2023-4154 dsdb/tests: Speed up DirSync test by only checking positive matches once
When we (expect to) get back a result, do not waste time against a potentially
slow server confirming we also get back results for all the other attribute
combinations.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15424

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2023-10-10 14:49:39 +00:00
Andrew Bartlett
76b8d3edce CVE-2023-4154 dsdb/tests: Check that secret attributes are not visible with DirSync ever.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15424

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2023-10-10 14:49:39 +00:00
Andrew Bartlett
b644bb0665 CVE-2023-4154 dsdb/tests: Force the test attribute to be not-confidential at the start
Rather than fail, if the last run failed to reset things, just force
the DC into the required state.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15424

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2023-10-10 14:49:39 +00:00
Andrew Bartlett
07d2b28fb3 CVE-2023-4154 dsdb/tests: Use self.addCleanup() and delete_force()
Thie helps ensure this test is reliable even in spite of errors while
running.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15424

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2023-10-10 14:49:39 +00:00
Andrew Bartlett
6578a65ed7 CVE-2023-4154 dsdb/tests: Do not run SimpleDirsyncTests twice
To re-use setup code, the super-class must have no test_*() methods
otherwise these will be run as well as the class-local tests.

We rename tests that would otherwise have duplicate names

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15424

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2023-10-10 14:49:39 +00:00
Ralph Boehme
b1fd656941 CVE-2023-4091: smbtorture: test overwrite dispositions on read-only file
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15439

Signed-off-by: Ralph Boehme <slow@samba.org>
2023-10-10 14:49:39 +00:00
Volker Lendecke
8107aafb40 idl: Add smb3posix.idl
Let PIDL take care of encoding SMB2_FILE_POSIX_INFORMATION. This way
we also get parsing.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-10-04 20:31:36 +00:00
Joseph Sutton
77b35c423e s4:kdc: Make use of ‘samba_kdc_entry_pac’ wrapper type
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-10-01 22:45:38 +00:00